Binding a SqlDataSource, to a GridView at Runtime

Hello

I'm experiencing some problems, binding a SqlDataSource to a GridView.

The following code creates the SqlDataSource:
string strConn = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
string strProvider = ConfigurationManager.ConnectionStrings["ConnectionString"].ProviderName;

SqlDataSource ds = new SqlDataSource(strProvider, strConn);
ds.SelectCommand = "SELECT * FROM rammekategori";

Then i bind the SqlDataSource to a GridView:

GridView1.DataSource = ds;
GridView1.DataBind();

ErrorMessage:

Format of the initialization string does not conform to specification starting at index 0.

Exception Details: System.ArgumentException: Format of the initialization string does not conform to specification starting at index 0.

Line 24: GridView1.DataBind();

Am i totally off target here? Can it be something about, that you have to set the datasource of the gridview, before the Page_Load event?

Thanks - MartinHN

You are probably not going to be happy with the results if you do manage to fix your immediate error. May I suggest you actually put the SqlDataSource in the .aspx page? You can then bind it in code, but don't change the select statement in code, as that too will cause some issues.|||

oh. The code was copied from VS2005, i forgot one important detail.

I add the SqlDataSource to the page, by using Page.Controls.Add(ds);

Still, i get the error, even if i set the DataSource property of the gridview like this:

GridView1.DataSource = (SqlDataSource)Page.FindControl("ds");

--

MartinHN

|||

What if you try this:

SqlDataSource m_SqlDataSource = Page.FindControl("ds") as SqlDataSource;

if (m_SqlDataSource != null)
{
GridView1.DataSourceID = m_SqlDataSource.ID;
GridView1.DataBind();
}

HTH,
Ryan

|||

>>>>What if you try this:

SqlDataSource m_SqlDataSource = Page.FindControl("ds") as SqlDataSource;

if (m_SqlDataSource != null)
{
GridView1.DataSourceID = m_SqlDataSource.ID;
GridView1.DataBind();
}

Still no success... It is still the samme error message:Format of the initialization string does not conform to specification starting at index 0.

I was wondering, if i need to set a couple of more properties on my SqlDataSource.

One thing i just tried, was createing a new SqlDataSource directly on the aspx page, from the Designer in VS2005. The i set the datasource, to the FindControl method, with the name as the parameter. That worked. But i'm interessted in getting a SqlDataSource object, from lower tier, than the page it self. So that i have a complete SqlDataSource with select, update, delete and insert commands, to use along with the gridview...

|||

Ah. I totally missed the actual error. Please post your connection string, leaving out any login information, but keep the formatting as-is.

|||

ok...

The connectionstring i am using are as follows:

<connectionStrings>
<add name="ConnectionString" connectionString="DRIVER={MySQL ODBC 3.51 Driver};SERVER=myserverip;DATABASE=mydb;UID=myuid;PASSWORD=mypwd;" providerName="System.Data.Odbc" />
</connectionStrings>

Should there be any troubles using a mySQL DB?

|||

I think I see your problem. The overloads for the SqlDataSource on MSDN are as follows:

SqlDataSource()
SqlDataSource(string connectionString, string selectCommand)
SqlDataSource(string providerName, string connectionString, string selectCommand)

So, you should be doing something like this:

string strConn = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;
string strProvider = ConfigurationManager.ConnectionStrings["ConnectionString"].ProviderName;
string selectCommand = "SELECT * FROM rammekategori";

SqlDataSource ds = new SqlDataSource(strProvider, strConn, selectCommand);

HTH,
Ryan

|||

Ryan - I really cannot find a way to show my appreciation... That was very nice to have sorted out, thanks for your help.

What about insert, delete and update commands, can i set them after I've instantiated the SqlDataSource object?

|||

martinhn wrote:

What about insert, delete and update commands, can i set them after I've instantiated the SqlDataSource object?

Yes.

SqlDataSource.DeleteCommand
SqlDataSource.InsertCommand
SqlDataSource.UpdateCommand

HTH,
Ryan

sql

Bind DataSource at runtime and Adding fields [A little help please]

hi,

I am using Crystal Reports 8.5 and Visual Biasic 6.0, the technique that I
was using was I connect the database using the ODBC to the crytal reports and design my report by draging the fields to the reports.

In my new assignment I have to bind a ADODB recordset to the report at
run time.

I got 2 Problems.

01. How can I bind a ADODB recordset to the report at run time
02. After binding the recordset how can I add the fileds to the report
content area

A small help on this please.

Thank you.Dim conn As ADODB.Connection 'CONNECTION TO BROKER QUERIES
Dim rs As ADODB.Recordset 'HOLDS ALL DATA RETURNED FROM QUERY
Dim crystal As CRAXDRT.Application 'LOADS REPORT FROM FILE
Dim Report As CRAXDRT.Report 'HOLDS REPORT

Set conn = New ADODB.Connection
conn.Open "Provider=MSDAORA.1;User ID=scott;Data Source=qb;Persist Security Info=False", "sebsv4", "sebsv4pwd" 'THESE OPTION VALUES ARE BEST FOR VB

Set rs = New ADODB.Recordset
rs.Open q, conn, adOpenStatic, adLockReadOnly

Set crystal = New CRAXDRT.Application 'MANAGES REPORTS

Set Report = crystal.OpenReport(App.Path & "\report1.rpt") 'OPEN OUR REPORT

Report.DiscardSavedData 'CLEARS REPORT SO WE WORK FROM RECORDSET
Report.Database.SetDataSource rs 'LINK REPORT TO RECORDSET

CRViewer1.ReportSource = Report 'LINK VIEWER TO REPORT
CRViewer1.ViewReport 'SHOW REPORT|||thanks for the quick reply sraheem

another small problem,

if I am using the report designer in VB like that, when I have draged a field name in to the report
it shows the field name as

field:<TableName>.<ColumnName>

now If I am doing the data binding at run time how can I add the recordset columns in to the report, since there is no data property on report fileds

Thanx.|||just capture report sections like below and add fields...

Dim crxdetail As CRAXDDRT.Section 'Section Decleration
Dim crxPageHeader As CRAXDDRT.Section 'Section Decleration
Dim crxPageFooter As CRAXDDRT.Section 'Section Decleration

Set crxdetail = Report.Sections.Item("D") 'Detail Section
Set crxPageHeader = Report.Sections.Item("PH") 'Detail Section
Set crxPageFooter = Report.Sections.Item("PF") 'Detail Section

crxdetail.AddFieldObject "{e." & rs(i).Name & "}", 1000, 0

where e is the report command object name or table name in your case.

BETWEEN predicate with passed parameters

I have a report in SQL that passes parameters at runtime entered by the user for two date ranges (beginning and ending). I'm trying to write a formula that will print a specific field *only if* the specified date range entered by the user is BETWEEN a specific value (like 200401). This is kind of reverse of a normal WHERE, BETWEEN clause.

I tried a standard BETWEEN predicate in my WHERE clause like:
IF '200401' BETWEEN ?BegPer and ?EndPer then salesanal.ptdbud01 else 0

But, it's returning an error that my Then statement is missing. I can't use a normal statement like 'IF ?BegPer >= '200401' and ?EndPer <= '200401', then....' because users could enter a RANGE of periods, so it would be difficult to code all of the possible combinations this way. I'm actually doing this in Crystal, but if someone can give me a standard MSSQL example, I can translate that over to Crystal.

Thanks in advance,
MichelleUSE Northwind
GO

SELECT *
FROM Orders
WHERE OrderDate >= '1996-07-08 00:00:00.000'
AND ShippedDate <= '1996-07-15 23:59:59.000'
GO|||Yeah, I can't just use the standard WHERE clause with >= and <=. I need to return a separate value for each month of the calendar year (these are setup in separate fields on my report). So, if the user enters parameter values into begper = '200401' and endper = '200403', then the report needs to print all 3 fields for months 01, 02, and 03, because they all fall within the range of 200401 and 200403. I would have to code all possible combos of a begper >= 'xx' and endper <= 'yy', ya know? While that may be entertaining, I wonder if there's a more efficient route? <g>

More details:
Table:
Custid, Janbudget, Febbudget, Marbudget, Aprbudget, etc etc.
User enters runtime parameters for a monthly period range, such as between '200401' (January) and '200403' (March). In this case, my report should only print the values in fields Janbudget, Febbudget and Marbudget. All other fields will either not print or print 0.

Any other ideas?

Thanks!
Michelle :)

Originally posted by Brett Kaiser

USE Northwind
GO

SELECT *
FROM Orders
WHERE OrderDate >= '1996-07-08 00:00:00.000'
AND ShippedDate <= '1996-07-15 23:59:59.000'
GO|||You need to use Group BY and use scalar functions...hold on...|||Like this?

SELECT OrderId
, DATEPART(yy,OrderDate) AS OrderDate_yy
, DATEPART(mm,OrderDate) AS OrderDate_mm
, DATEPART(yy,ShippedDate) AS ShippedDate_yy
, DATEPART(mm,ShippedDate) AS ShippedDate_mm
, COUNT(*) AS Orders
FROM Orders
WHERE OrderDate >= '1996-07-08 00:00:00.000'
AND ShippedDate <= '1996-07-15 23:59:59.000'
GROUP BY OrderId
, DATEPART(yy,OrderDate)
, DATEPART(mm,OrderDate)
, DATEPART(yy,ShippedDate)
, DATEPART(mm,ShippedDate)